CVE-2023-5090

A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.

A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)

• kernel: TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)

• kernel: ovl: fix leaked entry (CVE-2021-46972)

• kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073)

• kernel: gro: fix ownership transfer (CVE-2024-35890)

• kernel: tls: (CVE-2024-26584, CVE-2024-26583, CVE-2024-26585)

• kernel: wifi: (CVE-2024-35789, CVE-2024-27410, CVE-2024-35838, CVE-2024-35845)

• kernel: mlxsw: (CVE-2024-35855, CVE-2024-35854, CVE-2024-35853, CVE-2024-35852, CVE-2024-36007)

• kernel: PCI interrupt mapping cause oops [rhel-8] (CVE-2021-46909)

• kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069)

• kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng [rhel-8] (CVE-2023-52615)

• kernel: net/mlx5e: (CVE-2023-52626, CVE-2024-35835, CVE-2023-52667, CVE-2024-35959)

• kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656)

• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset [rhel-8] (CVE-2024-26801)

• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)

• kernel: netfilter: nf_tables: use timestamp to check for set element timeout [rhel-8.10] (CVE-2024-27397)

• kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560)

• kernel: ppp_async: limit MRU to 64K (CVE-2024-26675)

• kernel: x86/mm/swap: (CVE-2024-26759, CVE-2024-26906)

• kernel: tipc: fix kernel warning when sending SYN message [rhel-8] (CVE-2023-52700)

• kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907)

• kernel: erspan: make sure erspan_base_hdr is present in skb->head (CVE-2024-35888)

• kernel: powerpc/imc-pmu/powernv: (CVE-2023-52675, CVE-2023-52686)

• kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)

• kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464)

• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)

• kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)

• kernel: crypto: (CVE-2024-26974, CVE-2023-52669, CVE-2023-52813)

• kernel: net/mlx5/bnx2x/usb: (CVE-2024-35960, CVE-2024-35958, CVE-2021-47310, CVE-2024-26804, CVE-2021-47311, CVE-2024-26859, CVE-2021-47236, CVE-2023-52703)

• kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004)

• kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

• kernel: USB/usbnet: (CVE-2023-52781, CVE-2023-52877, CVE-2021-47495)

• kernel: can: (CVE-2023-52878, CVE-2021-47456)

• kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356)

• kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353)

Bug Fix(es):

• Kernel panic - kernel BUG at mm/slub.c:376! (JIRA:Rocky Linux-29783)

• Temporary values in FIPS integrity test should be zeroized [rhel-8.10.z] (JIRA:Rocky Linux-35361)

• Rocky Linux8.6 - kernel: s390/cpum_cf: make crypto counters upward compatible (JIRA:Rocky Linux-36048)

• [Rocky Linux8] blktests block/024 failed (JIRA:Rocky Linux-8130)

• Rocky Linux8.9: EEH injections results Error: Power fault on Port 0 and other call traces(Everest/1050/Shiner) (JIRA:Rocky Linux-14195)

• Latency spikes with Matrox G200 graphic cards (JIRA:Rocky Linux-36172)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: tls (CVE-2024-26585,CVE-2024-26584, CVE-2024-26583

• kernel-rt: kernel: PCI interrupt mapping cause oops [rhel-8] (CVE-2021-46909)

• kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069)

• kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng (CVE-2023-52615)

• kernel-rt: kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656)

• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset CVE-2024-26801)

• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)

• kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397)

• kernel: wifi: mac80211: (CVE-2024-35789, CVE-2024-35838, CVE-2024-35845)

• kernel: wifi: nl80211: reject iftype change with mesh ID change (CVE-2024-27410)

• kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

• kernel:TCP-spoofed ghost ACKs and leak initial sequence number (CVE-2023-52881)

• kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)

• kernel: ovl: fix leaked dentry (CVE-2021-46972)

• kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073)

• kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560)

• kernel: ppp_async: limit MRU to 64K (CVE-2024-26675)

• kernel: mm/swap: fix race when skipping swapcache (CVE-2024-26759)

• kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907)

• kernel: x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault() (CVE-2024-26906)

• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)

• kernel: net/usb: kalmia: avoid printing uninitialized value on error path (CVE-2023-52703)

• kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)

• kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464)

• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)

• kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)

• kernel: net/bnx2x: Prevent access to a freed page in page_pool (CVE-2024-26859)

• kernel: crypto: (CVE-2024-26974, CVE-2023-52813)

• kernel: can: (CVE-2023-52878, CVE-2021-47456)

• kernel: usb: (CVE-2023-52781, CVE-2023-52877)

• kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)

• kernel: usbnet: sanity check for maxpacket (CVE-2021-47495)

• kernel: gro: fix ownership transfer (CVE-2024-35890)

• kernel: erspan: make sure erspan_base_hdr is present in skb->head (CVE-2024-35888)

• kernel: tipc: fix kernel warning when sending SYN message (CVE-2023-52700)

• kernel: net/mlx5/mlxsw: (CVE-2024-35960, CVE-2024-36007, CVE-2024-35855)

• kernel: net/mlx5e: (CVE-2024-35959, CVE-2023-52626, CVE-2024-35835)

• kernel: mlxsw: (CVE-2024-35854, CVE-2024-35853, CVE-2024-35852)

• kernel: net: (CVE-2024-35958, CVE-2021-47311, CVE-2021-47236, CVE-2021-47310)

• kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004)

• kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356)

• kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353)

Bug Fix(es):

• kernel-rt: update RT source tree to the latest Rocky Linux-8.10.z kernel (JIRA:Rocky Linux-40882)

• [rhel8.9][cxgb4]BUG: using smp_processor_id() in preemptible [00000000] code: ethtool/54735 (JIRA:Rocky Linux-8779)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)

• kernel: TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)

• kernel: ovl: fix leaked entry (CVE-2021-46972)

• kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073)

• kernel: gro: fix ownership transfer (CVE-2024-35890)

• kernel: tls: (CVE-2024-26584, CVE-2024-26583, CVE-2024-26585)

• kernel: wifi: (CVE-2024-35789, CVE-2024-27410, CVE-2024-35838, CVE-2024-35845)

• kernel: mlxsw: (CVE-2024-35855, CVE-2024-35854, CVE-2024-35853, CVE-2024-35852, CVE-2024-36007)

• kernel: PCI interrupt mapping cause oops [rhel-8] (CVE-2021-46909)

• kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069)

• kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng [rhel-8] (CVE-2023-52615)

• kernel: net/mlx5e: (CVE-2023-52626, CVE-2024-35835, CVE-2023-52667, CVE-2024-35959)

• kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656)

• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset [rhel-8] (CVE-2024-26801)

• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)

• kernel: netfilter: nf_tables: use timestamp to check for set element timeout [rhel-8.10] (CVE-2024-27397)

• kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560)

• kernel: ppp_async: limit MRU to 64K (CVE-2024-26675)

• kernel: x86/mm/swap: (CVE-2024-26759, CVE-2024-26906)

• kernel: tipc: fix kernel warning when sending SYN message [rhel-8] (CVE-2023-52700)

• kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907)

• kernel: erspan: make sure erspan_base_hdr is present in skb->head (CVE-2024-35888)

• kernel: powerpc/imc-pmu/powernv: (CVE-2023-52675, CVE-2023-52686)

• kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)

• kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464)

• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)

• kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)

• kernel: crypto: (CVE-2024-26974, CVE-2023-52669, CVE-2023-52813)

• kernel: net/mlx5/bnx2x/usb: (CVE-2024-35960, CVE-2024-35958, CVE-2021-47310, CVE-2024-26804, CVE-2021-47311, CVE-2024-26859, CVE-2021-47236, CVE-2023-52703)

• kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004)

• kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

• kernel: USB/usbnet: (CVE-2023-52781, CVE-2023-52877, CVE-2021-47495)

• kernel: can: (CVE-2023-52878, CVE-2021-47456)

• kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356)

• kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353)

Bug Fix(es):

• Kernel panic - kernel BUG at mm/slub.c:376! (JIRA:Rocky Linux SIG Cloud-29783)

• Temporary values in FIPS integrity test should be zeroized [rhel-8.10.z] (JIRA:Rocky Linux SIG Cloud-35361)

• Rocky Linux SIG Cloud8.6 - kernel: s390/cpum_cf: make crypto counters upward compatible (JIRA:Rocky Linux SIG Cloud-36048)

• [Rocky Linux SIG Cloud8] blktests block/024 failed (JIRA:Rocky Linux SIG Cloud-8130)

• Rocky Linux SIG Cloud8.9: EEH injections results Error: Power fault on Port 0 and other call traces(Everest/1050/Shiner) (JIRA:Rocky Linux SIG Cloud-14195)

• Latency spikes with Matrox G200 graphic cards (JIRA:Rocky Linux SIG Cloud-36172)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Marvin vulnerability side-channel leakage in the RSA decryption operation (CVE-2023-6240)
• CVE-2024-25743 hw: amd: Instruction raise #VC exception at exit (AMD-SN-3008,CVE-2024-25742,CVE-2024-25743)

Bug Fix(es):

• ffdhe* algortihms introduced in 0a2e5b909023 as .fips_allowed=1 lack pairwise consistency tests (JIRA:AlmaLinux-27009)
• mm/mglru: fix underprotected page cache (JIRA:AlmaLinux-29235)
• [EMR] [TBOOT OS] SUT could not go to S3 state with AlmaLinux 9.2 Tboot OS One CPU return -16 running BUSY (JIRA:AlmaLinux-29673)
• system hangs completely - NMI not possible (JIRA:AlmaLinux-30678)
• ice 0000:6f:00.0: PTP failed to get time (JIRA:AlmaLinux-30110)

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)
• kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)
• kernel: ovl: fix leaked dentry (CVE-2021-46972)
• kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073)
• kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560)
• kernel: ppp_async: limit MRU to 64K (CVE-2024-26675)
• kernel: mm/swap: fix race when skipping swapcache (CVE-2024-26759)
• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)
• kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907)
• kernel: x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault() (CVE-2024-26906)
• kernel: powerpc/powernv: Add a null pointer check in opal_event_init() (CVE-2023-52686)
• kernel: powerpc/imc-pmu: Add a null pointer check in update_events_in_group() (CVE-2023-52675)
• kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)
• kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464)
• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)
• kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)
• kernel: net/bnx2x: Prevent access to a freed page in page_pool (CVE-2024-26859)
• kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974)
• kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)
• kernel: net/mlx5: Properly link new fs rules into the tree (CVE-2024-35960)
• kernel: net/mlx5e: Fix mlx5e_priv_init() cleanup flow (CVE-2024-35959)
• kernel: net: ena: Fix incorrect descriptor free behavior (CVE-2024-35958)
• kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004)
• kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356)
• kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353)
• kernel: net: ti: fix UAF in tlan_remove_one (CVE-2021-47310)

Bug Fix(es):

• Kernel panic - kernel BUG at mm/slub.c:376! (JIRA:AlmaLinux-29783)
• Temporary values in FIPS integrity test should be zeroized [almalinux-8.10.z] (JIRA:AlmaLinux-35361)
• AlmaLinux8.6 - kernel: s390/cpum_cf: make crypto counters upward compatible (JIRA:AlmaLinux-36048)
• [AlmaLinux8] blktests block/024 failed (JIRA:AlmaLinux-8130)
• AlmaLinux8.9: EEH injections results Error: Power fault on Port 0 and other call traces(Everest/1050/Shiner) (JIRA:AlmaLinux-14195)
• Latency spikes with Matrox G200 graphic cards (JIRA:AlmaLinux-36172)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: tls (CVE-2024-26585,CVE-2024-26584, CVE-2024-26583
• kernel-rt: kernel: PCI interrupt mapping cause oops [almalinux-8] (CVE-2021-46909)
• kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069)
• kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng (CVE-2023-52615)
• kernel-rt: kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656)
• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset CVE-2024-26801)
• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)
• kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397)
• kernel: wifi: mac80211: (CVE-2024-35789, CVE-2024-35838, CVE-2024-35845)
• kernel: wifi: nl80211: reject iftype change with mesh ID change (CVE-2024-27410)
• kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)
• kernel:TCP-spoofed ghost ACKs and leak initial sequence number (CVE-2023-52881)
• kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)
• kernel: ovl: fix leaked dentry (CVE-2021-46972)
• kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073)
• kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560)
• kernel: ppp_async: limit MRU to 64K (CVE-2024-26675)
• kernel: mm/swap: fix race when skipping swapcache (CVE-2024-26759)
• kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907)
• kernel: x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault() (CVE-2024-26906)
• kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)
• kernel: net/usb: kalmia: avoid printing uninitialized value on error path (CVE-2023-52703)
• kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)
• kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464)
• kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)
• kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826)
• kernel: net/bnx2x: Prevent access to a freed page in page_pool (CVE-2024-26859)
• kernel: crypto: (CVE-2024-26974, CVE-2023-52813)
• kernel: can: (CVE-2023-52878, CVE-2021-47456)
• kernel: usb: (CVE-2023-52781, CVE-2023-52877)
• kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)
• kernel: usbnet: sanity check for maxpacket (CVE-2021-47495)
• kernel: gro: fix ownership transfer (CVE-2024-35890)
• kernel: erspan: make sure erspan_base_hdr is present in skb->head (CVE-2024-35888)
• kernel: tipc: fix kernel warning when sending SYN message (CVE-2023-52700)
• kernel: net/mlx5/mlxsw: (CVE-2024-35960, CVE-2024-36007, CVE-2024-35855)
• kernel: net/mlx5e: (CVE-2024-35959, CVE-2023-52626, CVE-2024-35835)
• kernel: mlxsw: (CVE-2024-35854, CVE-2024-35853, CVE-2024-35852)
• kernel: net: (CVE-2024-35958, CVE-2021-47311, CVE-2021-47236, CVE-2021-47310)
• kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004)
• kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356)
• kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353)

Bug Fix(es):

• kernel-rt: update RT source tree to the latest AlmaLinux-8.10.z kernel (JIRA:AlmaLinux-40882)
• [almalinux8.9][cxgb4]BUG: using smp_processor_id() in preemptible [00000000] code: ethtool/54735 (JIRA:AlmaLinux-8779)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues:

A use-after-free vulnerability was found in drivers/nvme/target/tcp.cinnvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

x86: KVM: SVM: always update the x2avic msr interception: The following problem exists since x2avic was enabled in the KVM: svm_set_x2apic_msr_interception is called to enable the interception of the x2apic msrs. In particular it is called at the moment the guest resets its apic. Assuming that the guest's apic is in x2apic mode, the reset will bring it back to the xapic mode. The svm_set_x2apic_msr_interception however has an erroneous check for '!apic_x2apic_mode()' which prevents it from doing anything in this case. As a result of this, all x2apic msrs are left unintercepted, and that exposes the bare metal x2apic (if enabled) to the guest. Removing the erroneous '!apic_x2apic_mode()' check fixes that. (CVE-2023-5090)

In unprivileged Xen guests event handling can cause a deadlock with Xen console handling. The evtchn_rwlock and the hvc_lock are taken in opposite sequence in __hvc_poll() and in Xen console IRQ handling. This is fixed by xen/events: replace evtchn_rwlock with RCU (CVE-2023-34324)

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 (CVE-2023-5345)

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges. (CVE-2023-5633)

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. (CVE-2023-46813)

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system. (CVE-2023-6176)

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of…

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues:

A use-after-free vulnerability was found in drivers/nvme/target/tcp.cinnvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

x86: KVM: SVM: always update the x2avic msr interception: The following problem exists since x2avic was enabled in the KVM: svm_set_x2apic_msr_interception is called to enable the interception of the x2apic msrs. In particular it is called at the moment the guest resets its apic. Assuming that the guest's apic is in x2apic mode, the reset will bring it back to the xapic mode. The svm_set_x2apic_msr_interception however has an erroneous check for '!apic_x2apic_mode()' which prevents it from doing anything in this case. As a result of this, all x2apic msrs are left unintercepted, and that exposes the bare metal x2apic (if enabled) to the guest. Removing the erroneous '!apic_x2apic_mode()' check fixes that. (CVE-2023-5090)

In unprivileged Xen guests event handling can cause a deadlock with Xen console handling. The evtchn_rwlock and the hvc_lock are taken in opposite sequence in __hvc_poll() and in Xen console IRQ handling. This is fixed by xen/events: replace evtchn_rwlock with RCU (CVE-2023-34324)

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 (CVE-2023-5345)

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges. (CVE-2023-5633)

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. (CVE-2023-46813)

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system. (CVE-2023-6176)

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of…

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly handle queue initialization failures in certain situations, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5178)

Budimir Markovic discovered that the perf subsystem in the Linux kernel did not properly handle event groups, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5717)

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. (CVE-2023-25775)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-45871)

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345)

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. (CVE-2023-25775)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-45871)

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345)

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. (CVE-2023-25775)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-45871)

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244)

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345)

Murray McAllister discovered that the VMware Virtual GPU DRM driver in the Linux kernel did not properly handle memory objects when storing surfaces, leading to a use-after-free vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5633)

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. (CVE-2023-25775)

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate SMB request protocol IDs, leading to a out-of- bounds read vulnerability. A remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-38430)

Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate command payload size, leading to a out-of-bounds read vulnerability. A remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-38432)

It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3863)

Laurence Wit discovered that the KSMBD implementation in the Linux kernel did not properly validate a buffer size in certain situations, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-3865)

Laurence Wit discovered that the KSMBD implementation in the Linux kernel contained a null pointer dereference vulnerability when handling handling chained requests. A remote attacker could use this to cause a denial of service (system crash). (CVE-2023-3866)

It was discovered that the KSMBD implementation in the Linux kernel did not properly handle session setup requests, leading to an out-of-bounds read vulnerability. A remote attacker could use this to expose sensitive information. (CVE-2023-3867)

It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel did not properly handle device initialization failures in certain situations, leading to a use-after-free vulnerability. A physically proximate attacker could use this cause a denial of service (system crash). (CVE-2023-4132)

It was discovered that a race condition existed in the Cypress touchscreen driver in the Linux kernel during device removal, leading to a use-after- free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4134)

Thelford Williams discovered that the Ceph file system messenger protocol implementation in the Linux kernel did not properly validate frame segment length in certain situation, leading to a buffer overflow vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-44466)

Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could…